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journal article·2021-10

Cost‐Efficient Photovoltaic‐Water Electrolysis over Ultrathin Nanosheets of Cobalt/Iron–Molybdenum Oxides for Potential Large‐Scale Hydrogen Production

Xinli Yi, Lizhu Song, Shuxin Ouyang, Ning Wang, Huayu Chen, Jianbo Wang, Jun Lv, Jinhua Ye

Small· Volume 17· Issue 39
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Source abstract

Abstract

Abstract Unassisted photovoltaic (PV) water splitting to hydrogen system is of great potential for future environmental‐friendly fuel production from renewable solar energy. However, industrialization simultaneously requires higher efficiency, sustained stability and a lower cost for the system. In this work, the ultrathin cobalt/iron–molybdenum oxides nanosheet on nickel foam (NF) is prepared for efficient HER and OER, respectively, delivering a relatively low voltage of 1.45 V at 10 mA cm−2 in two‐electrodes configuration. Water electrolysis at low voltage driven by electrocatalysts is critical for realizing energy conversion. Integrated with a commercial monocrystalline silicon cell, the H2 area specific activity of 0.47 L m−2 h−1 is achieved with a solar‐to‐hydrogen efficiency of 15.1% under solar simulator illumination (100 mW cm−2) and no performance degradation appeares over 160 h. Such a solar conversion technology demonstrates the potential for long‐term and cost‐efficient H2 production in large‐scale industrialization and provides an exploration for new‐type of energy‐conversion system.
Source: crossref · Quality: baseline

Research context

NanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Solar-Powered Water Purification Methods

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

TJU‐NIMS International Collaboration Laboratory School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China

College of Chemistry Central China Normal University Wuhan 430079 P. R. China

State Key Laboratory of Marine Resource Utilization in South China Sea Hainan University Haikou 570228 P. R. China

College of Materials and Chemistry China Jiliang University Hangzhou Zhejiang 310018 P. R. China

School of Electronic Science and Engineering Southeast University Nanjing 210096 P. R. China

Electronic Information Engineering College Sanjiang University Nanjing 210012 P. R. China

School of Photovoltaic and Renewable Energy Engineering The University of New South Wales Sydney NSW 2033 Australia

International Center for Materials Nanoarchitectonics (WPI‐MANA) National Institute for Materials Science (NIMS) 1‐1 Namiki Tsukuba 305‐0047 Japan

Funding

National Natural Science Foundation of China · Japan Society for the Promotion of Science

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